Your Brain Isn’t Made for Trading

“Our brains are hard-wired to get us into investing trouble; humans are pattern-seeking animals . . . .Our brains are designed to perceive trends even where they might not exist. After an event occurs just two or three times in a row . . . the anterior cingulate and nucleus accumbens automatically anticipate that it will happen again. If it does repeat . . . dopamine is released . . . .Thus, if a stock goes up a few times in a row, you can reflexively expect it to keep going up . . . .Brain chemistry changes as the stock rises, giving . . . a “natural high.” You effectively become addicted to your own predictions.”